摘要
本研究以不同油酸花生品种为材料,对籽仁含油量、脂肪酸和蔗糖含量累积规律和基豆先豆间差异及籽仁不同部位差异进行分析。结果表明,随着花生籽仁的发育,含油量增加且高油品种含油量积累速率高于低油品种,蔗糖含量下降;不饱和脂肪酸逐渐增加,饱和脂肪酸和超长链饱和脂肪酸逐渐下降,亚麻酸逐渐降低到消失,其中高油酸材料棕榈酸、亚油酸和亚麻酸的下降速率以及油酸的上升速率高于普通油酸材料。各材料脂肪酸在基豆和先豆间无显著差异,而含油量基豆高于先豆。成熟籽仁胚中棕榈酸、亚油酸、花生烯酸、山嵛酸和二十四碳烷酸含量显著高于子叶,含油量、硬脂酸和油酸含量低于子叶,在胚中约含有0.5%左右的亚麻酸,而子叶中未检测到亚麻酸。本研究结果对选育高品质油用型和食用型花生品种具有指导意义。
In this study,the different oleic acid peanut varieties were used to analyze the accumulation of oil content,fatty acids,and sucrose content during the seed development of peanut,the differences between apical and basal seeds,and different parts of seeds.The results showed that during the development of seeds,the oil content in⁃creased,the accumulation rate of oil content in high oil varieties was higher than that of low oil varieties,and the su⁃crose content decreased.The unsaturated fatty acids gradually increased,saturated fatty acids and very long-chain fatty acids gradually decreased,the linolenic acid gradually decreased to untraceable level,the decrease rate of pal⁃mitic acid,linoleic acid,linolenic acid and the increase rate of oleic acid in high oleic acid materials were higher than those in normal oleic acid materials.There was no significant difference in the fatty acids of the various materi⁃als between the apical and basal seeds,while the oil content of the basal seeds was higher than that of the apical seeds;The palmitic acid,linoleic acid,arachidonic acid,behenic acid and tetracosanoic acid content in embryos were significantly higher than those in cotyledons.The oil content,stearic acid andoleic acid content in embryos were lower than those in cotyledons.Linolenic acid were about 0.5%in embryo,but not detected in cotyledons.The results could guide the quality selection for the purpose of industrial oil and edible peanut variety.
作者
郭建斌
李威涛
丁膺宾
徐思亮
淮东欣
刘念
陈伟刚
黄莉
罗怀勇
周小静
雷永
姜慧芳
GUO Jian-bin;LI Wei-tao;DING Ying-bin;XU Si-liang;HUAI Dong-xin;LIU Nian;CHEN Wei-gang;HUANG Li;LUO Huai-yong;ZHOU Xiao-jing;LEI Yong;JIANG Hui-fang(Oil Crops Research Institute of China Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Im-provement of Oil Crops,Ministry of Agriculture and Rural Affairs,Wuhan 430062,China)
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2020年第6期1051-1057,共7页
Chinese Journal of Oil Crop Sciences
基金
国家自然科学基金(31761143005,31801403,31871666)
农作物种质资源保护项目(2017NWB033)
国家农作物种质资源共享服务平台(NICGR2017-36)
国家花生产业技术体系建设(CARS-13)。
关键词
花生
种子发育
脂肪酸
含油量
蔗糖
peanut
seed develpoment
fatty acid
oil content
sucrose
